AMBIT MICROSYSTEMS (SHANGHAI) LTD.

A Display System and Display Method for Augmented Reality, comprising a display device displays a light-emitting mark, and an augmented reality wearable device comprising a wearable body equipped with a light sensor. The light sensor detects the light-emitting mark and a flashing signal, then passes both the light-emitting mark and the flashing signal to a processor. The processor compares the flashing signal and a reference flashing signal, and when they match and the light-emitting mark matches a reference light image, it controls an image capturing device on the wearable body to capture a light-emitting mark image. The processor calculates a distance information and an angular information between the image capturing device and the light-emitting mark based on the light-emitting mark image, generating a projection parameters accordingly. The processor controls the projection device to adjust a projection image of an object according to the projection parameters.

An audio time latency-based spatial orientation method is disclosed. A VR device is paired and connected with a plurality of speakers. Multiple audio time latencies from the VR device to the speakers are calculated. Current positions of the speakers relative to the VR device are calculated based on the audio time latencies and a virtual boundary is defined. Threshold values of the speakers relative to the virtual boundary are defined. It is determined whether the VR device is close to or beyond the virtual boundary according to the threshold values. If the VR device is close to or beyond the virtual boundary, the VR device issues an alarm.

An electronic apparatus with convenient airflow-reversing function includes a chassis, a rotation mechanism, a fan device, a connection rod, and a handle. The chassis includes a bottom plate. The rotation mechanism is pivoted on the bottom plate. The fan device is disposed on the rotation mechanism. The connection rod is pivoted on the rotation mechanism. The handle is pivoted on the chassis, and is rotatably connected to the connection rod. When the handle is rotated, the connection rod drives the rotation mechanism and the fan device to rotate to change the airflow direction.

An audio latency calibration method is disclosed. A master speaker and a slave speaker are located at a separation distance from each other, and a paring process is performed. As the paring process is completed, multiple latency time period parameters are obtained relating to the master and slave speakers. The latency time period parameters comprise: T1+T2 representing the time that the master speaker sends an audio signal to the slave speaker, T3+T4 representing the time that the audio signal is transmitted from the slave speaker to a microphone of the master speaker, T5 representing the time that a trumpet of the master speaker plays the audio signal and T3′ representing the time that a microphone of the master speaker receives the audio signal. Thus, the way to synchronously play audio signals can be achieved.